Spray a 3- to 4-quart casserole with no-stick spray.
In the casserole, combine the tomatoes (with juices), cauliflower, Swiss chard, lentils, barley, water and vinegar.
Cover and bake at 350Â° for 50 to 60 minutes or until the lentils are tender and the liquid is absorbed.
Uncover and sprinkle with the cheese and bread crumbs.
Bake about 5 minutes more or until the cheese melts.